Hot-water boiler.



B. KAPLAN.

HOT WATER BOILER.

APPLICATION FILED FEB. 18. |915.

- Patented Mar. 20, 1917.

3 SHEETS-SHEET I.

TVN.

EN SW7 mr mums Fergus ca. Hom-uma. wAsHINcmN. nv n B. KAPLAN.

HOT WATER BOILEH. APPLICATION 11150 158.18. 1915.

Patented Ma1z`20, 1917.

3 SHEETS-SHEET 2.

B; KAPLAN.

HOT WATER BOILER. APPLICATION FILED FEB. I8. I9I5.

3 SHEETS-SHEET 3- Pmed Mar. 2o, 1917.

BENJAMIN KAPLAN, 0F NEW YORK, N. Y.

HOT-WATER BOILER.

Specification of Letters Patent.

Patented Mar. 20, 1917.

Y Application led February 18, 1915. Serial No. 9,055.

To all 'whom if-may concern:

Be it known that I, BENJAMIN KA'P'LAN, a citizen of the United States,an'd a resident of New York, borough o f Bronx, county of Bronx, and State of New York,

Hot-Water Boilers,

This invention relates more particularly to a class of heating apparatus adapted to be' used in buildings and like structures.

My inventionhas for its object primarily to provide a boiler which may be employed in conjunction with the ordinary boiler 'for supplying heat and hot water to 'a 'building and like structure whereby during the warm period of the year hot water may be supplied at a minimum consumption of fuel independent of the use of the regular boiler, and which will obviate the requirement for providing two separate boilers as is incident to the present methods in use, or the boiler may be used as occasion demands to provide an eXtra supply of hot water to that supplied by the regular heating apparatus. Moreover, in instances where the building is not provided with a general heating Vsystem this form of boiler may be employed separately for supplying hot water.

A practical embodiment of the invention is represented in the accompanying dra-wings forming a part of this specification in' which similar characters of reference indicate corresponding parts in all the views, the said invention being more fully described hereinafter, and then pointed out in the claims at the end of the description.

In the drawings,.Figure 1 is a longitudinal vertical section, partly in detail and partly broken away, showing a well known form of heating apparatus for producing steam and hot water with `one form of boiler embodying my'invention applied thereto.

Fig. 2 is aview taken on the line I--I of Fig. 1.

Fig. 8 is a view taken on the line II-II of Fig. 1.

Fig. 4 is a reduced sectional view taken on the line III-III of Fig. 1.

Fig. 5 is a reduced perspective view of the hollow body or shell ofthe hot water boiler, and

Fig. 6 is a top plan of the hollow body.

The hot water boiler has a hollow body, or shell 10 formed to adapt it to be applied on the rear end of a heating apparatus, as

have! invent-V ed a certain new and useful Improvement in of which the following is a full, clear, and exact specification.

1x1, which may be of a well-known type used for supplying steam and hot water to a building, or like structure, this heating ap'- paratus being constructed with a number of abutting chambered sections 12 for holding water, and having a fire-box 13 from the rear of `which leads a flue 14 disposed vertically and longitudinally through spaced intervals of the central portions of the chambered sec tions so that the smoke will pass to the front of the apparatus and then to its rear for eXit through an outlet 15 provided in the upper part of the back of the apparatus. Water is fed into the sections 12 through a main pipe 16 leading from a source of supply to the lower parts of the sections which are connected to this main pipe by branch pipes so that all the sections will receive a uniform supply of water. On the top of the sections 12 is arranged a tank 17 in which the's'upply of steam is generated by the apparatus, this tank being in communication with one or a number of the sections 12 by connecting the tank and the sections with pipes 18 so that the tank may be partially filled with water, as 19, therefrom to permit steam to be generated in the tank for delivery through a supply pipe, as 20, leading from the tank for distribution and use as required, and on the tank may be provided the usual steam gage, as 21, and a safety-valve, as 22.

The hollow body, or shell 10 of the hot water boiler is preferably substantially rectangular in shape to provide therein a single chamber 28 for water, and the central part of the lower end of the front of the hollow body is recessed to form a iire-boX 24 so that its top, rear, and side-walls will be contacted by the water in the chamber 23 for receiving the heat directed from the fire playing on these walls. The hollow body 10 is supported on a suitable base, as 25, having an ash pit 26 which is directly under the grate 27 provided in the lower part of the fire-box 24, and this base is an extension of the base 28 which supports the heating apparatus 11. In the lower part of the back of the hollow body 10 is another recess 28a which communicates with the fire-box 13 of the heating apparatus to provide part of its smoke-Hue 14, as shown in Fig. 1, and connected to the front of the hollow body is a front wall, or plate 29 which is spaced from the hollow body. Between the lower part of the front wall 29 and the hollow body 10 at the bottom of the fire-box 24 is a partition 30, and

between the upper parts of this front wall and the hollow body are two spaced partitions 31 and 32. rlhe spaces between these partitions provide vertically disposed passages, as 33 and 34, in the front of the boiler,

- and the lower end of the passage 33 communicates with the lire-box 24. Disposed horizontally through the hollow body from its front to its rear are tnree spaced passages 35, 36, 37. One end of the horizontal passage 35 communicates with the upper end of the vertical passage 33, and the other end of this horizontal passage communicates with a rear vertically disposed passage 33 which is also in communication with the rear end of the horizontal passage 36. This rear end of the horizontal passage 36 communicates with an opening 36*L through the back wall of the hollow body, and this opening is in register with the outlet 15 of the flue of the heating apparatus 11. The front of the horizontal passage 36 communicates with the lower end of the vertical passage 34, and the upper end of this vertical passage communicates with the front end of the horizontal passage 37, the rear end of which terminates with an outlet 39 leading to a chimney. By arranging these passages in this manner a substantially S-shaped line is provided in the hollow body 10 above the fire-box 24 for transmitting smoke from the lire-box circuitously through the hollow body so as to utilize the heat of the smoke for heating the water, as 40, in the chamber 23, the water being fed thereto through a pipe 41 leading from any desired source of supply and which is connected to the lower part of the hollow body.

In'order to permit access to the S-shaped flue to be had for cleaning purposes in the upper part of the front wall 29 of the boiler is an'opening 42 leading into the vertical passage 34 and into the horizontal passages 36 and 37, and this opening is normally closed by a door 43 hinged to the front wall. Also in the front wall 29 is a second opening 44 leading into the vertical passage 33 and into the horizontal passage 35, and this second opening is normally closed by a door 45 hinged to the front wall. By passing a suitable implement through the openings 42 and 44 after the doors thereof have been swung open all foreign matter which may accumulate in the S-shaped flue may be readily removed through these openings. To allow the fire-box 24 to be supplied with fuel, in the lower part of the front wall 29 is an opening 46,leading into the lire-box through the lower part of the vertical passage 33, this opening being normally closed by a door 47 hinged to the front wall, and through the front-plate below the partition 31 is a fourth opening 48 leading into the pit 26 to permit ashes and the like to be removed therefrom, and this opening is normally closed by a door 49 hinged to the front wall.

Servino to permit the hot water boiler to be cut-o entirely from the heating apparatus 11 so as tovbe used independently for producing hot water, to the rear wall of the hollow body 10 in the upper part of the vertical passage 3S is pivoted one edge of a damper 50, having a rod, as 51, extending transversely through the hollow body and through openings in the side walls thereof for some distance therebeyond, and the free ends of these rods are bent, as shown, to provide handles whereby the rod may be manually rotated to swing the damper. damper 50 is of a size adapted when swung` accordingly to alternately open or close the vertical passage 33 and the inlet 361L of the horizontal passage 36. When the hot water boiler is used in conjunction with the heating apparatus 11 the damper 50 is swung to close the vertical passage 38, as shown in Fig. 1,. and the smoke from the fire in the heating apparatus will be carried through its flue 14, through the outlet 15, into the inlet 36'L of the hot water boiler, through the horizontal passage 36, through the vertical passage 34, through the horizontal passage 37, and through the outlet 39 to the chimney. When it is desired to employ the hot water boiler independently Y the damper 50 is swung upwardly to close the inlet 36a of the S-shaped flue, and to limit the rearward movement of the damper projecting from the upper part of the wall of the inlet is a stop 36b against which the damper will contact. The smoke from the lire in the boX 24 will then be drawn through the vertical passage 33 at the front of the fire-box and through the S-shaped flue of the hollowbody 10 for exit through the outlet 39 to the chimney. Thus all the heat from. the lire-box 24 as well as the heat from the smoke from the lire will be eifectually utilized for heating the water in the cham- The ber of the hollow body 10, and by utilizing the heat in this manner a sufficient supply of hot water may be produced at a minimum consumption of fuel. Moreover, in instances where there is no regular heating apparatus the boiler may be used separately for producing a supply of hot water.

W hen the hot water boiler is associated with the heating apparatus and the apparatus is in operation, as above described, the water in the chamber of the hollow body 10 may only be partially heated, and serving as means to provide a supply of hot water in addition to that supplied by the heating v apparatus, on the top of the hollow body 10 is a tank, as 51, the interior of which communicates with the chamber of the hollow body by pipes 52 and 52a so that water will lill, the tank when pumped into the chamber of the hollow body, and connected to this tank is a discharge pipe, as 53, having a relief-valve of any well-known form therein to allow overflow of the water in the tank to be discharged. Arranged in the tank 51 is a coil of steam-pipe 511, one end of which is connected to a cut-ofi' valve 55 of a suitable type, and also connected to this valve is a pipe 56 leading into the upper part of the tank 17 of the heating apparatus 11. The other end 56a of the steam-pipe 54 passes through an opening in the tank 51 and leads into the upper part of the tank 17, and also leading from this tank is a discharge pipe 57 having a suitable form of cut-@if valve 58 interposed therein. In order to quickly and thoroughly heat the water in the tank 51 for emergency use when the heating apparatus is in operation, the valve 55 of the coil of steam-pipe 54 is opened, and steam from the tank 17 will pass through the pipe 56, through the valve 55, through the coil of steam-pipe, and the steam will then be returned through the portion 56a of the steampipe into the tank 17. When the water in the tank is suiliciently heated the required quantity of it may be delivered through the discharge pipe 57 after its valve 58 is opened.

In the foregoing description, I have embodied the preferred form of my invention, but I do not wish to be understood a's limiting myself thereto as I am aware that modiiications may be made therein without departing from the principle or sacrificing any or' the advantages of this invention, therefore I reserve to myself the right to make such changes as fairly fall within the scope of the appended claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with a furnace having an S-shaped passage leading from the fire-box to the chimney and a water boiler superposed thereover for heating water, of a second boiler disposed adjacent the rear of the furnace, comprising a hollow body providing a single chamber for holding water, the lower part of the hollow body being recessed to provide a fire-box for a second fire and the upper part of the hollow body having spaced vertical and horizontal passages therein communicating with the S- shaped passage of the furnace whereby the fire from the furnace may be admitted through the passages of the second hot water boiler for heating water, or the fire from the second lire-box may be used for heating the water in the second boiler, and a damper for controlling the passages so as to admit the fire from the furnace or the second fire-box so that it may pass through the passages of the hollow body of the second boiler, substantially as set forth aud for the purposes specified.

2. In a hot water heating system, the combination with a main boiler having an S-shaped smoke flue and a water circulating chamber, of a secondary boiler having an S-shaped smoke iiue and a water circu lating chamber, said main and secondary boilers being located adjacent each other and the passage in the smoke iiue of the main boiler being in communication with one of the branches of the smoke flue in the secondary boiler, together with means for closing the communication between said iiues.

'3. In a hot water heater, a main boiler having a series of longitudinal passages therein, a secondary boiler adjacent said main boiler and closing the ends of two of said passages but leaving them in open communication one with the other, means for closing the end of one of said last mentioned passages and the end of a third passage but leaving said second and third passages in open communication one with the other, and a winding iiue in said secondary boiler, the last mentioned of said passages in said main boiler being in communication with the Hue in said secondary boiler at a point intermediate of its length.

This specification signed and witnessed this seventeenth day of February A. D.

BENJAMIN KAPLAN. Vitnesses ROBT. B. ABBOTT, M. DERMoDY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

